Diabetes may be independent risk factor for hyperkalaemia

EDITOR—Wrenger et al reported severe hyperkalaemia in patients taking spironolactone in combination with angiotensin converting enzyme inhibitors or angiotensin-II antagonists.1 The strikingly high prevalence of diabetes in these patients (80%) is likely to be important. In a study of the prevalence of hyperkalaemia in an unselected diabetic outpatient population we found that hyperkalaemia was …